<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>复制模式</title>
</head>
<body>

<script type="text/javascript" src="extend.js"></script>
<script type="text/javascript">
    var a = mixExtend({a: 1}, {b: 2}, {c: {d: 4}, e: 5});
    console.log(a);

</script>
</body>
</html>